Flexible shingle



A. A, GRISWOL.

FLEXIBLE SHINGLE.

APPucATxoN FILED FE.`|4, 1921.

1,4271, l 54h Patented Aug. 29, 1922.

JNYEMEJ entre@ srares earner Cesarea.

ALBERT ABBE GRISWOLD, 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR 0F ONE-HALF T0 JOHN FRANCIS CHEVALIER, OF BROOKLXNE, MASSACHUSETTS.

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' Specification of Letters Patent. Pajmgd Aug, 299 19220 application mea-rbruary ie, i921. serial no. 444,970.

ToaZZ whom it may concer/n Be it known that l, ALBERT ABBE Gnis- WoLD, a citizen of the United States, residin-gvat Providence, in thecounty of Providence and State of Rhode Island, have in# vented a new and. useful .Improvement in Flexible Shingles, of which the following is a specification.

invention has reference to an improvement in flexible shingles and more particularly to an improvement in flexible shingles adapted to be laid diagonally.

In the construction of roofs and the like on which iexible shingles are laid diagonally, -it isl necessary to vhold down the free or lower corner of the shingles so as to pre- -vent bending or curling up of the free end of the shingles and allowing rain, snow or sleet to beat up under the shingles, thereby giving an unsightly'appearance and causing :the roof to leak. j

rllhe object of my invention is to improve the construction of such a flexible shingle, whereby the means for holding down 'the free or lower corner of the shingle is formed inte ral with the shingle.

y invention consists in the peculiar and novel construction of such a flexible shingle, said shingle having twin Voppositely disposed .'means formed integral with the shingle, for holding down the lower corner of thev shingle, thereby eliminating auxiliary means heretofore used for this purpose.

Figure 1 is a plan view of a portion of a flexible shingled roof, said flexible shingles being provided with myimproved twin oppositely disposed means formed Vintegral with the shingles, for securing the outer or lower corner of the shinglesA in place on the roof. .i

Figure 2 is a plan view of my improved flexible shingle.'

Figure 3 is an inverted improved flexible shingle.

Figli the fastening end of the shingle, and

Figure 5 is an enlarged'transverse sectional view taken on line 5,- 5 of Figure 3.

In the drawing 6 indicatesy the sheathing of a roof and 7, 7 my improved exible plan view i of my shingles. 1- rlhe roof sheathing 6 may` also represent the sheathing on the walls of a building. The flexible shingles 7, 7 may be constructed of .any suitable flexible material. Each shingle 7 has, before the bent unre llis a detail vertical edge view ofder' twin oppositely disposed flaps are' formed, a lower corner 8 which is split centrally upwards at 9 a predetermined distance, on a line with the upper corner of the shingle, as indicated in dotted lines in Figure 3. The twin corners thus formed are then bent under into twin oppositely disposed fastening flaps 10, 10 parallel'with ends 11, 11 of the fastening flaps 10, 10 ex tend, out sidewise slightly beyond the/edges of the shingle, asy shown in Figures 2 and 3, so that they can be easily seen, and this aids in the laying of the shingles. 'llhe distance shown in the drawing between the pointed ends 11, 11 and the edges of the shingle is exaggerated to more clearly show my invention.

ln shingling a roof or the like with my improved flexible shingles 7, 7 the shingles are laid diagonally. Each course is laid by placing a shingle 7 of the next upper course over a shingle 7 of the next lower course in a position for the pointed ends 11, 11 of the fastening flaps 10, 10 to go under the edges of two adjacent lower shingles. The shingle is then moved lupwards and the twin fastening flaps 10, 10 forced under'the adjacent edges of two shingles in the lower course, as shown in Figure 1, thereby interlocking, holding down and securing. the lower end of the shingle to two shingles previously nailed to the roof, in the lower course. nly'two nails 14, 14 are used for each shingle'and the nails are nailed through the shingles adjacent thev side corners ofthe shingles, as shown in Figure 1.

By this construction the twin fastening liaps for holding down the lower corner of the shingle are formed integral with the shingle, thereby eliminating any auxiliary meanseheretoforeiuse'd and the shingles are `laid in position Afor nailing in one operation.

tour of these 4flaps could be varied, vthe object l. if.'

being to so shape and position each `twin flap relative to the shingle, that the ends of the flaps will protrude beyond the edges of the shingle and that the flaps will easily go under the edges of two adjacent shingles, previously laid, as described.

Having thus described my invention l claim as new l. A flexible shingle having two oppositely disposed turned under fastening :Haps with-endswhich protrude beyond the edges of the shingle, said fastening flaps being adapted to go under the edges of shingles previously laid, for the purpose as described.

2. A flexible shingle having two oppositely disposed turned under` fastening aps 4 `with pointed ends which protrude beyond the lower edges of the shingle, said tastening apsbeing adapted to go under the adjacent edges of twoshingles previously laid, :for the purpose as described'.

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3. A exible shingle having an angular -notch in its lower end, the sides of said notch being approximately at right angles 'to each other, a turned under fastening flap extending from eachv angular edge of the' ALBERT ABBE GRlSWLD. 

